Spinning and twisting frame



April 3,1928. l 1,664,959

- J. ZVQRIKIN y SPINNING AND TWISTING FRAME Filed March 26. 1926 ZSheQtS-Sheet 1 Fig. I

2 Sheets-Sheet 2 April 3, 1928.

J. zvoRnlN SPINNING AND TWISTll-G FRAME Filed March 26. .1926

Patented Apr. 3, 1928.

UNITED STATES PATENT OFFICE.

JEAN zvoRIKrN, or PARIS, FRANCE.l

SPINNING'AND TWISTING Application filed March 2G, 1926, Serial No. 97,756, and in France February 3, 1926..

above the movable lrail the bobbin on which i the thread is wound and Aat its upper end the iiyer which gives the Y,yarn the desired twist. When the bobbin is full, it is necessary to dismount the'flyer to withdraw the bobbin from the upper end of lthe spindle' and replace it by an empty bobbin.

In accordance with the invention fixed to the rotating spindle is replaced by a device wholly independent ofv the rotating spindle, whence result advantages not only as regards facility of replacement of full bobbins by empty bobbins kbut also as regards the conduct of the spinning and twisting opera-tions; particularly, the number of rotations of the spindle and the size of bobbin may be increased and generally there may be obtained an output considerably in eX- Vcess of that obtainable with the usual spinning or twisting frame.

i am aware that it has previously been proposed 'to provide in such frames a flyer mounted independently ofthe spindle but in such case the spindle was fixed and served simply to support the bobbin.

In order that the invention maybe better understood it is hereinafter described, but

bywa'y of example only, with reference to the accompanying drawings, in which:

Fig. 1 is an elevation of a spinning frame with the devices of the invention shown in section at the left hand side.

Fig. 2 is a part elevation part section of the mechanism for impart-ing twist to the thread.

Fig. 3 is a detail View of this mechanism displaced 90 degrees relatively to the axis of rotation.

Fig. 4 is a part elevation part section of the flyer Athe bobbin during rotation.

lbobbin in, place, the springs pass by way of the b'obbin-carrying spindle with bobbin in position. y Y

Referring tothe drawing, the twisting mechanism comprises a horizontal disci, (Figs. 1 and 2) fitted' with two depending tubular arms 2 and 3 of which one only is operative, the other serving to balance or replace the first, if required. The disc 1 is mounted on a ltube t supported for rotation in ball bearings 5 in` the sleeve 6 mounted in the upper fixedA rail 7. This disc receives its rotary movement from the roller 9 mounted on t-he. shaft 10 (Fig. 1) transmitted. by the cord 11 passing over the guide pulley 12 and around the pulley 13 screwed: on to the tube .il and thus constrained to rotate with the disc.y f YThe yarn llf'after'its passage between the .drawing rollers 15 andthrough guide eyes 8 penetrates the vtube 4 (Fig. 2), then. traverses the eye 16 at the extremity of the arm 2, whether previously guided or not, depending on requirements and. on the nature of the yarn, by the curls 17 and 18. It will be seen that each rotation effected by the disc 1 corresponds to one turn of twist of the thread.

lThe spindle 19 (Fig. 4E) is free to turn around its axis in a support 20 locked. by nut 21 to a movable rail 22. This spindle 19 receives a rapid movement of'rotation from the roller 9 'transmitted by the cord 23 which passes over the guide pulley 2a fixed to rotate with the spindle. `In consequence of its rapid rotation and of the resulting gyrOSCOpic phenomenon, the axis of the spindle remains stationary without vibration.

The bobbin 25 rests. freely on the spindle and presents a circular groove 26 engaged by springs 27 which prevent vertical shift of In fitting the the 'notches 28 (Fig. 4) formed at diametrally opposed poi-nts in the circulaishoulder 29 of 'the bobbin and enter the groove 26.

As shown in Fig. 1,4 the bobbin 25 is mounted on the same geometrical axis as the twist mechanism, and in its rising and falling movement communicated by the movable rail 22 it passes between the two vertical arms 2 and 3. The t-hread leaving the eye l0 is thus wound on the bobbin 25 to which it coi'nmunicates a movement of rotation braked in the usual manner to obtain a suitable speed relation of the disc l and bobbin 2a. The movable rail 22 is lifted by the action of the chain 30 attached tothe bracket 31 fined to the rail, said chain beingoperated by the sector 32 to which is imparted bysuitable means oscillating movement aroundan axis 33; the rail is permitted to descend un der the action of its own weight. y. rlhere are indicated at 221 and at l the"upper 'posi tions of the `rail 22 andof the bobbin 25,` i

To replace full bobbins by empty bobbins, the frame is stoppedwhei'ithe rail22 is in lowered position; this'replacementdoes not necessitate any dismounting Aof parts other thanfthebobbin, so that time is economized.

The inventioiipresents over prior con M structions other advantageswhich will be understood from the following. i

In prior frame constructions the `upper lend of the long rotating spindle is oyerload- `ed by the somewhat heavy flyer,`and is insuf- A ficiently balanced, it being necessary to unscrew it and rescrew it frequently to replace the bobbins; further, the spindle supports the load of the full bobbin at the moment when the rail is in its upper position. vIn theV arrangement of the invention there. is obtained great stability of the several ele ments and notably of the axis of the spindle which renders it possible to confine the thread to a predetermined path and largely to obviate Arisk of breakage. The speed `of -rotationv may `also be increased so las to in# creasethe .outputy of the frame.

In known frames the thread leaving the guidefollows a path which is distant from fthe geometricalA axis of the spindle, being subject to theaction ofY centrifugal force at the points where it is unsupported. VHence results the phenomenon known as balloonincr. l'Vith the iresent arrangement, how# b PD f ever, the lower guide 8 may be brought very Y :close to the pulley 13 since the twist mechanism does `not -require to be dismounted. Further,v the thread 14 follows thegeonieti'ical axis of spin up to the point where itV leaves the disc l, andin consequence the ballooning effect is considerably reduced-a circumstance whichi also the speed ofiotation.

From the foregoing it will be'seenthat very high Aspeeds may be used, which,V may amountin wet spinning to 9000 revolutions permits increase of of the spindle per minute in frames in which thespindles are spaced apart 61/2 centinietifes with bobbins of a height of 9 centiinetres.`

ln the s cldstvle `of frame with a maximum lheight'of bobbin of 6 ceiitiinetres the speed was onlyA 4000 revolutions per minute.- i ,A

Onaccount of the high speeds of rotation it is necessary to provide an arrangement which will reduce to a minimum'the inconveniences resulting from breakage of the thread, which inconveniences do not occasion excessive trouble in the old styles of frames because of the low speed. It is known that in case of breakage of the `thread the yarn is wound on and entangled around the lower drawing roller which rotates continuously and that the operative'is obliged to remove theyarn wound around theroller. To obviate necessity" for this operation thereis placed beneath the lower roller l5 a small diameter roller 34 of the saine length, the arbor 'ofi which small` `diameter roller is 1 `mounted'on one end of a bellcrank lever 35 fitted `to rocken `a fulcrum 36 and carrying -at itsopposite end a counterbalance weight 37 which` presses the ,roller ifilagainst the drawing roller 15.V ,v

If the thread.V breaks, the `yarn 14 wound Varound the drawing roller l15 unwinds itself y `from this roller and winds itself on the roller 315i` so that thedrawing roller` is always kept clear; the operative can then reconnect the broken threadwwithout hindrance'.`

Itis to be understood that the invention is not limitedto the details of construction Y and arrangementdescribed, but that the saine may be varied wit-hout departure from the essence of the invention. Y

`In particularn there maybe varied the v means for rotating the disc l and the spindle i 19; alsopthese `elements maybe mounted otherwise. than as described, with orfwithout ball bearings. n i Y .f What Iclaim is:l Y i A spinning couple comprising arotary spindle,- a' thread-receiving bobbininounted thereon and rotating independently' thereof,

and means for imparting ai twist to the thread,

the arm andan eye at the lower extremity of suoli arm. i y ,i

3. A spinning couple comprising a rotary spindle, al thread-receiving bobbin mounted thereon by being freely impaled on the Spindle `said means including a rapidly rotating disk 3 and rotating independently thereof, means for imparting a twist to the thread,sai d means including aL rapidlyrotating disk rotating on the same axis as the spindle andbobbin and having two depending arms onone of which thethread is guided to the bobbin, and nieans for moving the spindle and associated bobhin axially between the depending arins.

4. In a device of the class described, the combination of a. spinning couple comprising a rota-ry spindle, a thread-receiving bobbin mounted thereon and rotating independently thereof, means for imparting a -10 twist to the thread including a rotary rotating disk haying two depending arms, in combination with a scavenging roll 1ocated beneath the usual lower drawing roller Yfor nnwinding the yarn which has become wound on the drawing roller in case of breakage of the thread.

In testimony whereof I have` signed myy name to this specification.

JEAN ZVORIKIN. 

